Tehiyok

Hey guys! I started playing DQMJ3 thanks to the English translation, and I am wondering about the in depth stuff like how stats result and how to increase the upper limits for a monster. I have, for example, Zoma stuck on 900 INT when the upper limit seems to be 1.500, and no matter how much I fuse, it stays on this for my Zoma. Sadly there seems no guides for this game at all in English. Hopefully someone can help me out!